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Portage Learning Nutrition Exam 3 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What vitamin is essential for calcium absorption in the small intestine?✔✔ Vitamin D
What mineral is necessary for red blood cell production and oxygen transport?✔✔ Iron
What nutrient acts as a coenzyme in energy metabolism and helps convert food into energy?✔✔ B vitamins
What is the primary role of vitamin K in the body?✔✔ Blood clotting
What mineral helps regulate fluid balance and is a major extracellular ion?✔✔ Sodium
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What mineral is the main component of bones and teeth?✔✔ Calcium
What vitamin deficiency can lead to night blindness?✔✔ Vitamin A
What mineral is required for thyroid hormone production?✔✔ Iodine
What is a major function of magnesium in the body?✔✔ Muscle and nerve function
What vitamin helps prevent neural tube defects during pregnancy?✔✔ Folate
What nutrient deficiency is most commonly associated with scurvy?✔✔ Vitamin C
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What vitamin supports collagen synthesis and boosts immune function?✔✔ Vitamin C
What mineral supports insulin function and glucose metabolism?✔✔ Chromium
What mineral is a key part of hemoglobin?✔✔ Iron
What condition results from a deficiency of vitamin B12?✔✔ Pernicious anemia
What mineral plays a critical role in nerve impulse transmission?✔✔ Potassium
What trace mineral helps protect cells from oxidative damage?✔✔ Selenium
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